<template>
  <van-form @submit="submitForm" @failed="onFailed" ref="ruleFormRef" :model="form">
  <van-cell-group>
  <van-field 
  v-model="form.username"
  label="账号："
  placeholder="请输入账号"
  clearable
  name="username"
  :rules="usernameRules"
  >
  </van-field>
  </van-cell-group>
  <van-cell-group>
  <van-field
  v-model="form.password"
  label="密码："
  placeholder="请输入密码"
  name="password"
  clearable
  type="password"
  :rules="passwordRules"
  ></van-field> 
  </van-cell-group>
  <van-cell-group>
  <van-button block round type="primary" native-type="submit">登录</van-button>
  </van-cell-group>
  </van-form>
 </template>
 <script setup>
 import { ref, reactive } from 'vue'
 import { login, getUser} from '../api'
 import useToken from '../stores/token'
 import useUser from '../stores/user'
 import { useRouter } from 'vue-router'
 const { updateToken } = useToken()
 const { updateUser } = useUser()
 const router = useRouter()
 const form = reactive({
  username: 'demo1',
  password: '123456'
 })
 const ruleFormRef = ref()
 // 定义验证规则
 const usernameRules = ref([
  { required: true, message: '用户名不能为空' },
  { pattern: /^\w{3,16}$/, message: '用户名长度为 3-16 个字符' }
 ])
 const passwordRules = ref([
  { required: true, message: '密码不能为空' },
  { pattern: /^\w{6,24}$/, message: '密码必须为 6-24 位英文字母或数字' }
 ])
 // 表单提交函数
 const submitForm = async values => {
  const data = await login(values)
  if (data) {
    updateToken(data.token)
    const user = await getUser()
    updateUser({
    isLogin: true,
    username: user.username,
    avatar: user.avatar
    })
    router.push({ name: 'user' })
  }
 }
 const onFailed = errorInfo => {
  console.log('failed', errorInfo)
 }
 </script>
 <style lang="less" scoped>
 button {
  position: fixed;
  top: 200px;
 }
 </style>